F04F 9/08
Control
F04F9/08 (Control) appears on 4 US grants and 5 published applications in this corpus.
Search patents in F04F- Granted patents
- 4
- Published applications
- 5
- Assignees
- 3
- Inventors
- 10
- Latest grant
- 28 Dec 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Energy-saving pump and control system for the pump28 Dec 2021US 11,208,993 B2
- Diffusion pump to supply heat from a condenser to a heating element2 Jul 2019US 10,337,531 B2Leybold Aktiengesellschaft
- Apparatus and method for controlling pressure ratio in high vacuum vapor pumps4 Mar 1980US 4,191,512 AVarian Associates, Inc.
- Generation of high vacuums30 Oct 1979US 4,172,477 ALeybold-Heraeus GmbH
- Bi-directional, water separating flow nozzle21 Nov 2019US 2019/0353185 A1
- Diffusion pump11 May 2017US 2017/0130738 A1Leybold Aktiengesellschaft
- Energy-saving pump and control system for the pump17 Jul 2014US 2014/0199184 A1
- Diffusion pumps13 Nov 2003US 2003/0210986 A1
- Methods and apparatus for controlling power in vapor jet vacuum pumps30 Oct 2003US 2003/0202874 A1
Most cited
By later US patents